Otter Creek Lake
Davidson County, Tennessee75 acresView mapDirections
TDEC publishes the water-quality measurements for Otter Creek Lake. Here is what has been measured.
- 40 ft max depth
- Limited data
Otter Creek Lake in Davidson County, Tennessee has water-quality measurements published by TDEC, shown here as reported. Phosphorus: 130 µg/L. Surface area: 75 acres.
Otter Creek Lake is a 75-acre lake in Davidson County, Tennessee with an estimated average depth of about 40 feet.
Source: EPA Water Quality Portal sampling records, TDEC, last sampled 2012-08-15. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Otter Creek Lake is safe to swim in today is a call for the Tennessee Department of Environment and Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Otter Creek Lake
These are the measurements TDEC publishes for Otter Creek Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 130 µg/L. TSI 74.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 130µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 74 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Otter Creek Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~40 ft est.
Surface area
75 acres
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Tennessee has not published bathymetry for Otter Creek Lake.
Lake Size & Watershed
Watershed (drainage) area
1 sq mi
HydroLAKES / HydroSHEDS
Shoreline
1.8 mi
HydroLAKES / HydroSHEDS
Elevation
784 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
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Fishing Otter Creek Lake
Reservoir Info (USACE NID)
Otter Creek Lake is a man-made reservoir impounded by the Radnor Dam (completed 1917), built primarily for recreation on the Otter Creek; earth-type dam, 54 ft tall and 850 ft long.
- Surface area
- 75 ac
- Normal storage
- 1,321 ac-ft
- Max storage
- 2,150 ac-ft
- Drainage area
- 2.12 sq mi
- Hazard class
- High
- Owner
- Tdec
Source: USACE National Inventory of Dams, NID ID TN03711 · Operator website · Matched by proximity (0.03 km)
Nearby Lakes in Davidson County
Frequently asked questions about Otter Creek Lake
Where is Otter Creek Lake?
- Otter Creek Lake is a lake in Davidson County, Tennessee. Its water-quality measurements are published by TDEC and shown on this page as reported.
What is the water quality of Otter Creek Lake?
- Otter Creek Lake in Davidson County, Tennessee has water-quality measurements published by TDEC, shown here as reported. Phosphorus: 130 µg/L. Surface area: 75 acres.
Is Otter Creek Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Otter Creek Lake?
- No published bathymetric survey covers Otter Creek Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 40 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 75 acres.
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Where this data comes from
1 measurement from 1 monitoring station, 2012. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- TDEC Division of Water Resources
TDECWR_WQX1 sample · 2012
Analytical methods
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)